Leipzig 2002 – scientific programme

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T: Teilchenphysik

T 504: Higgs-Bosonen III

T 504.7: Talk

Thursday, March 21, 2002, 17:45–18:00, HS 15

QCD Corrections to Charged Higgs Boson Production — •Fantina Madricardo, Bernd Kniehl, and Matthias Steinhauser — II. Institut f"ur Theoretische Physik Universit"at Hamburg Luruper Chaussee 149 22761 Hamburg

In framework of the MSSM we present QCD corrections to the associated production of a top and a bottom quark with a charged Higgs boson in e⁺e⁻ collisions. This requires a careful treatment of both ultraviolet and infrared divergences. For the evaluation of the virtual contributions the calculation of loop integrals involving up to four propagators is necessary. On the other hand for the real corrections a four particle phase space with four different masses has to be solved. The phenomenological applications are briefly discussed.